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KMID : 0361620140490040272
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Journal of the Korean Orthopaedic Association
2014 Volume.49 No. 4 p.272 ~ p.277
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Iatrogenic Femur Proximal Shaft Fracture during Nailing Using Lateral Entry Portal on Femur Shaft Fracture
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Sohn Hong-Moon
Lee Gwang-Chul
Lim Chae-Won
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Abstract
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Purpose: We attempted to determine the cause of iatrogenic fractures and to prevent their occurrence during nailing using lateral entry portal on femur shaft fracture.
Materials and Methods: We conducted a retrospective study of 160 patients who had been treated with nailing using a lateral entry portal for femur shaft fractures. We compared 18 patients (group 1) with iatrogenic fractures on the femur proximal portion with 18 patients (group 2) who had no fracture, and then surveyed and analyzed the characters of the fracture, position of the portal, nail size, and complications.
Results: In distribution of primary femur shaft fractures, there were eight cases of proximal portion, nine cases of mid-portion, and one case of distal portion. In that of iatrogenic fractures, there were nine cases of medial fractures, five cases of lateral fractures, four cases of anterior fractures. In the entry portal of group 1, mean 1.82 mm leaned to the lateral side in antero-posteriorview, mean 5 mm leaned to the anterior side in lateral view. Anterior leaning of the entry portal was statistically significant with iatrogenic fracture.
Conclusion: The more the entry portal leaned to the lateral and anterior side, the greater the frequency of occurrence of iatrogenic fractures. To prevent iatrognic fracture, through preoperative X-ray, we must have a precise understanding and measure anatomical bowing and variance of the femur, and must pay attention to operative procedures during the operation.
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KEYWORD
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femoral fractures, intramedullary fracture fixation, iatrogenic fracture
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